8511

Category: Alarm

Cause

1. Servo motor ambient temperature too high
2. The servo motor operates with a load exceeding its rating
3. Encoder fault
4. Servo unit fault.

Corrective action

1. Measure the servo motor ambient temperature and reduce it to 40°C or below.
2. Use cumulative load ratio (Un009) to check motor load; reduce the servo motor load to within its rating before operating again.
3. Turn on power again. If the alarm persists, the servo motor may be faulty. Replace the servo motor.
4. Turn on power again. If the alarm persists, the servo unit may be faulty. Replace the servo unit.